Operational Data Checking

An automatic data checking system has been implemented at ECMWF to trigger warnings in case of anomalies affecting the quality or the availability of the data assimilated by the model. Selected statistical parameters (number of observations, bias correction, and mean bias-corrected background, analysis departures and probability of gross error) are checked against an expected range. An appropriate alert message (including a time series plot) is generated if statistics are outside the specified ranges. A severity level (slight, considerable, severe) is assigned to each message depending on how far statistics are from the expected values. Two kinds of ranges are used by the automatic checking: Soft and Hard limits. Soft limits are updated automatically using statistics from the last twenty days (extremes are excluded during this process). Hard limits are adjusted manually when required.

Currently, the automatic checking is limited to data passing through the minimisation process (including VarBC passive data). It's being applied twice a day to the delayed cut-off 4D-VAR cycles (00 and 12) and four times a day to the early delivery assimilation system (00,06,12 and 18).

The alarm system results are based on feedback information from the ECMWF data assimilation and consequently reflect the ECMWF data usage. Although most warnings are related to data problems, they may on occasion also be related to model issues. Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice. ECMWF accepts no responsibility for actions taken on the basis of these results.

Delayed cut-off 4DVAR at 2020-05-28 12:00

amsua
NOAA-19 AMSUA RADIANCES CHANNEL 9 : out of range
Considerable: avg_biascorr=-0.0644, expected range: -0.0401 0.0058
airs
AQUA AIRS RADIANCES (49 channels affected) : out of range
Considerable: obs_number=16029.0000, expected range: 18132.5218 19314.6547
gpsro
All FY-3C GNOS RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 467.59 2312.99
COSMIC2-E1 GPSRO SETTING HEIGHT 23 : out of range
Slight: avg_norm_fgdepar=-0.0630, expected range: -0.0184 0.1111
Atmospheric Motion Vector
METEOSAT-8 AMV IR3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=564.0000, expected range: 18.5857 411.4143
HIMAWARI-8 AMV CLOUDY WV2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
Considerable: obs_number=1480.0000, expected range: 1822.7863 2960.7137
GOES-16 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=8068.0000, expected range: 9222.4152 11625.0848
Radiosondes
All LAND TEMP ALL LAYERS WMO BLOCK 43 : all data missing
Severely_persistent: obs_number=0, expected range: 51.38 148.12
LAND TEMP Q (G/KG) 35121 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.3614, expected range: 0.0000 1.6280
LAND TEMP WIND VECTOR DIFF (M/S) 26781 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.4101, expected range: 0.0000 7.5841
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 76 : all data missing
Severe: obs_number=0, expected range: 31.97 642.31
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 84 : all data missing
Severe: obs_number=0, expected range: 67.94 91.56
HIGH RESO LAND TEMP Q (G/KG) 47827 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.8863, expected range: 0.0000 1.8978
HIGH RESO LAND TEMP TEMPERATURE (K) 50953 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.9730, expected range: 0.0000 1.1833
HIGH RESO LAND TEMP TEMPERATURE (K) 57461 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.6526, expected range: 0.0000 2.8433
LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=188.0000, expected range: 27.0487 120.0794
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
Considerable: obs_number=63.0000, expected range: 107.9922 140.2578
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=152.0000, expected range: 22.1169 77.1331
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA PRESSURE LAYER 300-600 (HP : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=20.6829, expected range: -32.7312 47.3923
WIGOS AMDAR Q (G/KG) C3VWUWRA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.3104, expected range: 0.1965 1.6122
WIGOS AMDAR WIND VECTOR DIFF (M/S) EHDRETBA PRESSURE LAYER 300-600 (HP : out of range
Severe: avg_pge=0.8458, expected range: -0.6977 0.7500
Severe: rms_fgdepar=19.7098, expected range: 0.0000 8.6778
airep
AIREP WIND VECTOR DIFF (M/S) BAW286 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8163, expected range: -0.8425 0.7500
Severe: rms_fgdepar=20.7681, expected range: 0.0000 34.3598
Severe: avg_fgdepar=20.5527, expected range: -13.5178 25.6279
prof
All EUROPEAN WIND PROFILER ALL LAYERS West pacific Tropica : all data missing
Severe: obs_number=0, expected range: 118.74 1183.87
All EUROPEAN WIND PROFILER ALL LAYERS South West Pacific : all data missing
Severe: obs_number=0, expected range: 118.74 1183.87
synop
MANUAL LAND SYNOP RH2M (%) 42792 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9897, expected range: -1.2401 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 47690 : out of range
Severe: rms_fgdepar=44.3838, expected range: 0.0000 20.8490
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42679 : out of range
Severe: avg_pge=0.8164, expected range: -0.7246 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42079 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=508.0591, expected range: 0.0000 217.7113
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42567 : out of range
Severe: avg_pge=0.8479, expected range: -0.9974 0.7500
Severe: rms_fgdepar=392.3629, expected range: 10.4708 270.5485
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41696 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=358.2304, expected range: 0.0000 131.4203
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42176 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8120, expected range: -1.5628 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42435 : out of range
Severe: rms_fgdepar=606.1073, expected range: 0.0000 82.5098
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 31054 : out of range
Severe: rms_fgdepar=356.8456, expected range: 0.0000 120.2435
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 31123 : out of range
Severe: avg_pge=0.8744, expected range: -0.4810 0.7500
Severe: rms_fgdepar=605.5312, expected range: 0.0000 214.3767
Severe: avg_fgdepar=-571.5368, expected range: -355.6347 386.5481
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40101 : out of range
Severe: rms_fgdepar=320.5967, expected range: 182.6085 245.0441
MANUAL LAND SYNOP RH2M (%) 42567 : out of range
Severe: rms_fgdepar=31.1225, expected range: 0.0000 14.3297
Severe: rms_fgdepar=31.6174, expected range: 0.0000 15.7590
MANUAL LAND SYNOP RH2M (%) 42886 : out of range
Severe: avg_pge=0.9737, expected range: -0.0135 0.0239
Severe: rms_fgdepar=38.9967, expected range: 0.0000 24.9993
MANUAL LAND SYNOP RH2M (%) 43303 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=54.6584, expected range: 0.0000 63.4273
Severe: avg_fgdepar=54.6584, expected range: -32.3416 57.0584
MANUAL LAND SYNOP RH2M (%) 42701 : out of range
Severe: rms_fgdepar=37.9965, expected range: 0.0000 18.5579
BUFR LAND SYNOP SURFACE PRESSURE (PA) 25017 : out of range
Severe: rms_fgdepar=598.6549, expected range: 0.0000 192.5452
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94834 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9044, expected range: 0.0000 0.0000
Severe: rms_fgdepar=551.1011, expected range: 0.0000 64.5849
Severe: avg_fgdepar=-551.1011, expected range: -88.0313 67.7090
BUFR LAND SYNOP SURFACE PRESSURE (PA) 51495 : out of range
Severe: rms_fgdepar=367.7939, expected range: 0.0000 171.7661
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=433.7000, expected range: 0.0000 157.8376
BUFR LAND SYNOP RH2M (%) 24639 : out of range
Severe: rms_fgdepar=42.7087, expected range: 0.0000 20.5947
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRL7 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=523.9680, expected range: 286.3491 667.8176
Severely_persistent: avg_fgdepar=-523.9680, expected range: -667.8176 -286.3491
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6DF6 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8420, expected range: -1.5098 0.7500
Severely_persistent: rms_fgdepar=631.6466, expected range: 0.0000 1557.2819
Severely_persistent: avg_fgdepar=631.6042, expected range: -864.5371 1508.2210
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9375 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8631, expected range: -0.0161 0.7500
Severely_persistent: rms_fgdepar=741.8121, expected range: 0.0000 1167.5268
Severely_persistent: avg_fgdepar=741.8121, expected range: -153.6481 1180.4458
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6AX3 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8006, expected range: 0.7101 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDJ3 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8063, expected range: 0.7399 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9VBP8 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9023, expected range: -0.6349 0.7500
SHIP SURFACE PRESSURE (PA) A8JR6 : out of range
Severe: rms_fgdepar=608.7624, expected range: 176.1705 847.9075
Severe: avg_fgdepar=-608.7624, expected range: -1342.3326 182.5291
SHIP SURFACE PRESSURE (PA) V7QJ5 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8390, expected range: 0.2827 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9365 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8295, expected range: -0.9020 0.7500
Severe: rms_fgdepar=596.3865, expected range: 0.0000 727.0381
Severe: avg_fgdepar=596.3865, expected range: -727.0381 267.0288
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5KO4 : out of range
Severe: rms_fgdepar=1086.9467, expected range: 0.0000 393.8381
Severe: avg_fgdepar=908.0804, expected range: -124.8090 398.7262
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQK3 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=539.9170, expected range: 327.2995 875.8788
Severe: avg_fgdepar=-527.7712, expected range: -840.6631 -364.2047
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXCR2 : out of range
Severe: rms_fgdepar=600.2562, expected range: 0.0000 181.2552
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYIK2 : out of range
Severe: avg_pge=0.8476, expected range: -0.3134 0.7500
Severe: rms_fgdepar=699.9551, expected range: 9.5592 1139.9000
Severe: avg_fgdepar=698.1560, expected range: -125.3869 1255.7084
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9450 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8133, expected range: 0.4625 0.7500
Severe: rms_fgdepar=561.4690, expected range: 180.4580 586.7265
Severe: avg_fgdepar=551.6104, expected range: 181.6482 583.5849
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) TBWUK48 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8922, expected range: -0.5222 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) CFL24 : out of range
Severe: avg_pge=0.8962, expected range: -0.2015 0.7500
Severe: rms_fgdepar=20.8693, expected range: 0.0000 25.4042
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 0053041 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9270, expected range: -0.5427 0.7500
Severe: rms_fgdepar=20.1615, expected range: 0.0000 15.5773
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601700 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8907, expected range: -1.3123 0.7500
Severe: rms_fgdepar=560.2760, expected range: 0.0000 949.7992
Severe: avg_fgdepar=-553.4466, expected range: -784.1774 890.2960
metar
METAR SURFACE PRESSURE (PA) OPPG : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=508.7334, expected range: 0.0000 221.5634
Severe: avg_fgdepar=506.9500, expected range: -297.0238 356.5379
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71356 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=56.6220, expected range: 50.8063 61.3264
Severely_persistent: avg_fgdepar=-56.6220, expected range: -61.3264 -50.8063
BUFR LAND SYNOP SNOW (CM) 01008 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=61.9296, expected range: 63.8861 132.3646
Severely_persistent: avg_fgdepar=-61.9243, expected range: -132.3651 -63.8847
BUFR LAND SYNOP SNOW (CM) 01435 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=108.6802, expected range: 95.7996 118.2137
Severely_persistent: avg_fgdepar=108.6786, expected range: 95.7910 118.2144
BUFR LAND SYNOP SNOW (CM) 01132 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=70.2959, expected range: 70.9264 75.9257
Severely_persistent: avg_fgdepar=70.2955, expected range: 70.9278 75.9216
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=108.4178, expected range: 96.3709 109.7592
Severe: avg_fgdepar=108.4177, expected range: 96.3673 109.7580
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.0818, expected range: 0.0000 15.5420
Severely_persistent: avg_fgdepar=-16.8818, expected range: -15.0290 0.0516
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8134, expected range: 0.4139 1.0068
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42079 : out of range
Severe: rms_fgdepar=10.3221, expected range: 3.1983 4.7925
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8110, expected range: 0.3884 1.0081
MANUAL LAND SYNOP 2M TEMPERATURE (K) 43303 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.4968, expected range: 0.0000 5.8206
MANUAL LAND SYNOP 2M TEMPERATURE (K) 22602 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.7495, expected range: 0.0000 3.4406
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8577, expected range: -0.4456 1.2332
BUFR LAND SYNOP 2M TEMPERATURE (K) 36026 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.5705, expected range: 0.0000 15.1842
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8126, expected range: 0.4121 1.0030
BUFR LAND SYNOP 2M TEMPERATURE (K) 22602 : out of range
Severe: rms_fgdepar=17.6411, expected range: 0.0000 3.4244
Severe: avg_fgdepar=-17.6411, expected range: -2.2694 3.3617